scholarly journals Axial-vector contributions in two-photon reactions: Pion transition form factor and deeply-virtual Compton scattering at NNLO in QCD

2021 ◽  
Vol 104 (9) ◽  
Author(s):  
V. M. Braun ◽  
A. N. Manashov ◽  
S. Moch ◽  
J. Schönleber
Keyword(s):  
Form Factor ◽  
Compton Scattering ◽  
Transition Form Factor ◽  
Axial Vector ◽  
Deeply Virtual Compton Scattering ◽  
Virtual Compton Scattering ◽  
Transition Form ◽  
Two Photon

scholarly journals Transition Form Factor in Higgs Production through Two-photon Processes

2014 ◽  
Author(s):  
Tsuneo Uematsu ◽  
Norihisa Watanabe ◽  
Yoshimasa Kurihara ◽  
Ken Sasaki
Keyword(s):  
Form Factor ◽  
Transition Form Factor ◽  
Higgs Production ◽  
Transition Form ◽  
Two Photon

scholarly journals Higgs production in two-photon processes and transition form factor

2014 ◽  
Author(s):  
Ken Sasaki ◽  
Norihisa Watanabe ◽  
Yoshimasa Kurihara ◽  
Tsuneo Uematsu
Keyword(s):  
Form Factor ◽  
Transition Form Factor ◽  
Higgs Production ◽  
Transition Form ◽  
Two Photon

PHOTON STRUCTURE AND DEEPLY VIRTUAL COMPTON SCATTERING IN ELECTRON-PHOTON COLLISION

2005 ◽  
Vol 20 (31) ◽  
pp. 7347-7357
Author(s):  
DAE SUNG HWANG ◽  
TSUNEO UEMATSU
Keyword(s):  
Compton Scattering ◽  
Light Cone ◽  
Axial Vector ◽  
Form Factors ◽  
Deeply Virtual Compton Scattering ◽  
Virtual Compton Scattering ◽  
Vector Form ◽  
Photon Structure ◽  
Electron Photon ◽  
Photon Collision

We study the deeply virtual Compton scattering on the photon target. The light-cone wavefunctions and the axial vector form factors of the photon are analyzed.

GAMMA GAMMA PHYSICS AT BELLE

2014 ◽  
Vol 35 ◽  
pp. 1460396 ◽  
Author(s):  
SADAHARU UEHARA ◽  
Keyword(s):  
Form Factor ◽  
Differential Cross Section ◽  
Cross Section ◽  
Cross Sections ◽  
Transition Form Factor ◽  
Light Quark ◽  
Transition Form ◽  
Two Photon ◽  
Belle Detector ◽  
Meson Pair

We report a high-statistics measurement of the differential cross section of the process [Formula: see text] with the Belle detector. We study spectroscopy of light-quark resonances and charmonia and test QCD models using the data. We summarize our systematic measurements of different processes of γγ → meson-pair production based on the parameterization of the cross sections and comparison with QCD models. We also report on the measurement of the two-photon π0 transition form factor at Belle.

scholarly journals Two-photon transition form factor of c¯c quarkonia

2017 ◽  
Vol 95 (1) ◽  
Author(s):  
Jing Chen ◽  
Minghui Ding ◽  
Lei Chang ◽  
Yu-xin Liu
Keyword(s):  
Form Factor ◽  
Transition Form Factor ◽  
Transition Form ◽  
Two Photon ◽  
Photon Transition

scholarly journals Higgs production in two-photon process and transition form factor

2014 ◽  
Vol 728 ◽  
pp. 202-205 ◽  
Author(s):  
Norihisa Watanabe ◽  
Yoshimasa Kurihara ◽  
Ken Sasaki ◽  
Tsuneo Uematsu
Keyword(s):  
Form Factor ◽  
Transition Form Factor ◽  
Higgs Production ◽  
Transition Form ◽  
Two Photon ◽  
Photon Process

γγ-PHYSICS AT KLOE/KLOE-2

2014 ◽  
Vol 35 ◽  
pp. 1460395
Author(s):  
D. BABUSCI ◽  
Keyword(s):  
Form Factor ◽  
Invariant Mass ◽  
Transition Form Factor ◽  
Transition Form ◽  
Two Photon ◽  
Photon Interactions

Photon-photon interactions have been studied at the ϕ-factory DAΦNE with the detector KLOE operating the machine at [Formula: see text] GeV, without tagging of the final leptons. The results about the γγ → η process and the evidence for γγ → π0π0 production at low π0π0 invariant mass are reviewed. The process γγ → π0 will be studied at KLOE-2 running the machine at ϕ-peak thanks to new lepton tagger detectors. In particular, the possibility to measure the two-photon width of π0 and the π0γ*γ transition form factor in the low (space-like) Q2 region is considered.

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